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<a name="1" href="#1">1</a>   <em class="comment">/*</em>
<a name="2" href="#2">2</a>   <em class="comment"> * @(#)MapUtilsTest.java     23 May 2009</em>
<a name="3" href="#3">3</a>   <em class="comment"> * </em>
<a name="4" href="#4">4</a>   <em class="comment"> * Copyright © 2009 Andrew Phillips.</em>
<a name="5" href="#5">5</a>   <em class="comment"> *</em>
<a name="6" href="#6">6</a>   <em class="comment"> * This program is free software: you can redistribute it and/or modify</em>
<a name="7" href="#7">7</a>   <em class="comment"> * it under the terms of the GNU General Public License as published by</em>
<a name="8" href="#8">8</a>   <em class="comment"> * the Free Software Foundation, either version 3 of the License, or</em>
<a name="9" href="#9">9</a>   <em class="comment"> * (at your option) any later version.</em>
<a name="10" href="#10">10</a>  <em class="comment"> *</em>
<a name="11" href="#11">11</a>  <em class="comment"> * This program is distributed in the hope that it will be useful,</em>
<a name="12" href="#12">12</a>  <em class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</em>
<a name="13" href="#13">13</a>  <em class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</em>
<a name="14" href="#14">14</a>  <em class="comment"> * GNU General Public License for more details.</em>
<a name="15" href="#15">15</a>  <em class="comment"> *</em>
<a name="16" href="#16">16</a>  <em class="comment"> * You should have received a copy of the GNU General Public License</em>
<a name="17" href="#17">17</a>  <em class="comment"> * along with this program. If not, see &lt;<a href="http://www.gnu.org/licenses/" target="alexandria_uri">http://www.gnu.org/licenses/</a>>.</em>
<a name="18" href="#18">18</a>  <em class="comment"> */</em>
<a name="19" href="#19">19</a>  <strong>package</strong> com.qrmedia.commons.collections;
<a name="20" href="#20">20</a>  
<a name="21" href="#21">21</a>  <strong>import</strong> <strong>static</strong> org.junit.Assert.*;
<a name="22" href="#22">22</a>  
<a name="23" href="#23">23</a>  <strong>import</strong> java.util.HashMap;
<a name="24" href="#24">24</a>  <strong>import</strong> java.util.Map;
<a name="25" href="#25">25</a>  <strong>import</strong> java.util.TreeMap;
<a name="26" href="#26">26</a>  
<a name="27" href="#27">27</a>  <strong>import</strong> org.junit.Test;
<a name="28" href="#28">28</a>  
<a name="29" href="#29">29</a>  <em>/**<em>*</em></em>
<a name="30" href="#30">30</a>  <em> * Unit tests for the {@code MapUtils}.</em>
<a name="31" href="#31">31</a>  <em> * &lt;p></em>
<a name="32" href="#32">32</a>  <em> * Since, as documented, this class only &amp;quot;decorates&amp;quot; Apache's </em>
<a name="33" href="#33">33</a>  <em> * {@linkplain org.apache.commons.collections.MapUtils} the tests do not</em>
<a name="34" href="#34">34</a>  <em> * cover only functionality not in the underlying class.</em>
<a name="35" href="#35">35</a>  <em> * </em>
<a name="36" href="#36">36</a>  <em> * @author aphillips</em>
<a name="37" href="#37">37</a>  <em> * @since 23 May 2009</em>
<a name="38" href="#38">38</a>  <em> *</em>
<a name="39" href="#39">39</a>  <em> */</em>
<a name="40" href="#40">40</a>  <strong>public</strong> <strong>class</strong> <a href="../../../../com/qrmedia/commons/collections/MapUtilsTest.html">MapUtilsTest</a> {
<a name="41" href="#41">41</a>      
<a name="42" href="#42">42</a>      @Test
<a name="43" href="#43">43</a>      <strong>public</strong> <strong>void</strong> toMap_<strong>null</strong>() {
<a name="44" href="#44">44</a>          assertEquals(<strong>new</strong> TreeMap&lt;Object, Object>(), MapUtils.toMap((Object[]) <strong>null</strong>));
<a name="45" href="#45">45</a>      }
<a name="46" href="#46">46</a>      
<a name="47" href="#47">47</a>      <em>/**<em>*</em></em>
<a name="48" href="#48">48</a>  <em>     * Because the underlying implementation deals with {@code &lt;Object, Object>} maps,</em>
<a name="49" href="#49">49</a>  <em>     * invalid values can be entered without error!</em>
<a name="50" href="#50">50</a>  <em>     */</em>
<a name="51" href="#51">51</a>      @Test
<a name="52" href="#52">52</a>      <strong>public</strong> <strong>void</strong> toMap_invalidEntries() {
<a name="53" href="#53">53</a>          String key = <span class="string">"James Bond"</span>;
<a name="54" href="#54">54</a>          Integer invalidKey = 0;
<a name="55" href="#55">55</a>          Map&lt;String, Integer> map = MapUtils.toMap(key, <span class="string">"invalid"</span>, invalidKey, 7);
<a name="56" href="#56">56</a>  
<a name="57" href="#57">57</a>          <em class="comment">// ouch!</em>
<a name="58" href="#58">58</a>          Object value = map.get(key);
<a name="59" href="#59">59</a>          assertNotNull(value);
<a name="60" href="#60">60</a>          assertFalse(value instanceof Integer);
<a name="61" href="#61">61</a>          
<a name="62" href="#62">62</a>          <em class="comment">// ouch again!</em>
<a name="63" href="#63">63</a>          assertTrue(map.containsKey(invalidKey));
<a name="64" href="#64">64</a>      }  
<a name="65" href="#65">65</a>      
<a name="66" href="#66">66</a>      @Test
<a name="67" href="#67">67</a>      <strong>public</strong> <strong>void</strong> toMap() {
<a name="68" href="#68">68</a>          Map&lt;String, Integer> expectedMap = <strong>new</strong> TreeMap&lt;String, Integer>();
<a name="69" href="#69">69</a>          String key = <span class="string">"James Bond"</span>;
<a name="70" href="#70">70</a>          Integer value = 7;
<a name="71" href="#71">71</a>          expectedMap.put(key, value);
<a name="72" href="#72">72</a>          
<a name="73" href="#73">73</a>          assertEquals(expectedMap, MapUtils.toMap(key, value));
<a name="74" href="#74">74</a>      }
<a name="75" href="#75">75</a>  
<a name="76" href="#76">76</a>      <em>/**<em>*</em></em>
<a name="77" href="#77">77</a>  <em>     * Check that, if an instance is provided, its existing content is preserved.</em>
<a name="78" href="#78">78</a>  <em>     */</em>
<a name="79" href="#79">79</a>      @Test
<a name="80" href="#80">80</a>      <strong>public</strong> <strong>void</strong> toMap_providedInstance_<strong>null</strong>() {
<a name="81" href="#81">81</a>          Map&lt;Object, Object> providedMap = <strong>new</strong> HashMap&lt;Object, Object>();
<a name="82" href="#82">82</a>          providedMap.put(<span class="string">"James Bond"</span>, <span class="string">"007"</span>);
<a name="83" href="#83">83</a>          Map&lt;Object, Object> expectedMap = <strong>new</strong> TreeMap&lt;Object, Object>(providedMap);
<a name="84" href="#84">84</a>          
<a name="85" href="#85">85</a>          <em class="comment">// two checks: that the contents are as expected and that the given *instance* is used</em>
<a name="86" href="#86">86</a>          assertSame(providedMap, MapUtils.toMap(providedMap, (Object[]) <strong>null</strong>));
<a name="87" href="#87">87</a>          assertEquals(expectedMap, providedMap);
<a name="88" href="#88">88</a>      }
<a name="89" href="#89">89</a>  
<a name="90" href="#90">90</a>      <em>/**<em>*</em></em>
<a name="91" href="#91">91</a>  <em>     * Because the underlying implementation deals with {@code &lt;Object, Object>} maps,</em>
<a name="92" href="#92">92</a>  <em>     * invalid values can be entered without error, even if the map is provided.</em>
<a name="93" href="#93">93</a>  <em>     */</em>
<a name="94" href="#94">94</a>      @Test
<a name="95" href="#95">95</a>      <strong>public</strong> <strong>void</strong> toMap_providedInstance_invalidEntries() {
<a name="96" href="#96">96</a>          Map&lt;String, Integer> providedMap = <strong>new</strong> HashMap&lt;String, Integer>();
<a name="97" href="#97">97</a>          providedMap.put(<span class="string">"Stuart Thomas"</span>, 5);        
<a name="98" href="#98">98</a>          String newKey = <span class="string">"James Bond"</span>;
<a name="99" href="#99">99</a>          Integer invalidNewKey = 0;
<a name="100" href="#100">100</a>         MapUtils.toMap(providedMap, newKey, <span class="string">"invalid"</span>, invalidNewKey, 7);
<a name="101" href="#101">101</a>         
<a name="102" href="#102">102</a>         <em class="comment">// ouch!</em>
<a name="103" href="#103">103</a>         Object newValue = providedMap.get(newKey);
<a name="104" href="#104">104</a>         assertNotNull(newValue);
<a name="105" href="#105">105</a>         assertFalse(newValue instanceof Integer);
<a name="106" href="#106">106</a>         
<a name="107" href="#107">107</a>         <em class="comment">// ouch again!</em>
<a name="108" href="#108">108</a>         assertTrue(providedMap.containsKey(invalidNewKey));
<a name="109" href="#109">109</a>     }  
<a name="110" href="#110">110</a>     
<a name="111" href="#111">111</a>     @Test
<a name="112" href="#112">112</a>     <strong>public</strong> <strong>void</strong> toMap_providedInstance() {
<a name="113" href="#113">113</a>         Map&lt;String, Integer> providedMap = <strong>new</strong> HashMap&lt;String, Integer>();
<a name="114" href="#114">114</a>         providedMap.put(<span class="string">"Stuart Thomas"</span>, 5);        
<a name="115" href="#115">115</a>         Map&lt;String, Integer> expectedMap = <strong>new</strong> TreeMap&lt;String, Integer>(providedMap);
<a name="116" href="#116">116</a>         
<a name="117" href="#117">117</a>         String newKey = <span class="string">"James Bond"</span>;
<a name="118" href="#118">118</a>         Integer newValue = 7;
<a name="119" href="#119">119</a>         expectedMap.put(newKey, newValue);
<a name="120" href="#120">120</a>         
<a name="121" href="#121">121</a>         assertSame(providedMap, MapUtils.toMap(providedMap, newKey, newValue));
<a name="122" href="#122">122</a>         assertEquals(expectedMap, providedMap);
<a name="123" href="#123">123</a>     }
<a name="124" href="#124">124</a>     
<a name="125" href="#125">125</a> }
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